Function: uksort version 75

Function:
Description: Sort an array by keys using a user-defined comparison function.
Version:
Status: latest
Date: 2011-12-20 04:42
Summary: Import from phpjs.
Programmer: jj5
Code
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function uksort (inputArr, sorter) {
    // http://jsphp.co/jsphp/fn/view/uksort
    // +   original by: Brett Zamir (http://brett-zamir.me)
    // +   improved by: Brett Zamir (http://brett-zamir.me)
    // %          note 1: The examples are correct, this is a new way
    // %        note 2: This function deviates from PHP in returning a copy of the array instead
    // %        note 2: of acting by reference and returning true; this was necessary because
    // %        note 2: IE does not allow deleting and re-adding of properties without caching
    // %        note 2: of property position; you can set the ini of "phpjs.strictForIn" to true to
    // %        note 2: get the PHP behavior, but use this only if you are in an environment
    // %        note 2: such as Firefox extensions where for-in iteration order is fixed and true
    // %        note 2: property deletion is supported. Note that we intend to implement the PHP
    // %        note 2: behavior by default if IE ever does allow it; only gives shallow copy since
    // %        note 2: is by reference in PHP anyways
    // *     example 1: data = {d: 'lemon', a: 'orange', b: 'banana', c: 'apple'};
    // *     example 1: data = uksort(data, function (key1, key2){ return (key1 == key2 ? 0 : (key1 > key2 ? 1 : -1)); });
    // *     results 1: data == {a: 'orange', b: 'banana', c: 'apple', d: 'lemon'}
    // *     returns 1: true
    var tmp_arr = {},
        keys = [],
        i = 0,
        k = '',
        strictForIn = false,
        populateArr = {};

    if (typeof sorter === 'string') {
        sorter = this.window[sorter];
    }

    // Make a list of key names
    for (k in inputArr) {
        if (inputArr.hasOwnProperty(k)) {
            keys.push(k);
        }
    }

    // Sort key names
    try {
        if (sorter) {
            keys.sort(sorter);
        } else {
            keys.sort();
        }
    } catch (e) {
        return false;
    }

    // BEGIN REDUNDANT
    this.php_js = this.php_js || {};
    this.php_js.ini = this.php_js.ini || {};
    // END REDUNDANT
    strictForIn = this.php_js.ini['phpjs.strictForIn'] && this.php_js.ini['phpjs.strictForIn'].local_value && this.php_js.ini['phpjs.strictForIn'].local_value !== 'off';
    populateArr = strictForIn ? inputArr : populateArr;


    // Rebuild array with sorted key names
    for (i = 0; i < keys.length; i++) {
        k = keys[i];
        tmp_arr[k] = inputArr[k];
        if (strictForIn) {
            delete inputArr[k];
        }
    }
    for (i in tmp_arr) {
        if (tmp_arr.hasOwnProperty(i)) {
            populateArr[i] = tmp_arr[i];
        }
    }
    return strictForIn || populateArr;
}
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